Guide for window sashes



Dec. 11, 1951 ZEMAN GUIDE FOR WINDOW SASHES Filed Jan. 15, 1946 ZazzzisZ 6176076 INVENTOR Patented Dec. 11,1951

UNITED STATES PATENT OFFICE GUIDE FOR WINDOW SASHES Louis Zeman,Danbury, Nebr.

Application January 15, 1946, Serial No. 641,247

This invention relates to guides for sliding window sashes, one of theobjects being to eliminate the ordinary stop and parting strips and tosubstitute therefor plates extending longitudinal- 1y of the windowframe and having parallel friction means which serve as guides forcorresponding elements secured to the sash so that the sash is not onlyproperly guided while being moved, but will also be held yieldingly inany position to which it might be. adjusted.

Another object is to provide guides which can be installed readily,which are inexpensive, and the use of which reduces materially the costof a completed window construction.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts hereinafter more fully describedand pointed out in the claim, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

In the accompanying drawing the preferred form of the invention has beenshown.

In said drawing Figure 1 is a horizontal section through one sideportion of a window frame and sashes therein, the parts being equippedwith guiding means such as constitutes the present invention.

Figure 2 is a vertical section through the lower portion of the windowframe and lower sash.

Figure 3 is a view on a reduced scale similar to Figure l, butillustrating a slightly modified structure.

Referring to the figures by characters of reference I designates oneside portion of a window frame while the bottom of the frame has beenindicated at 2 and the sill at 3. Ordinarily the sides of the frame areprovided with stop strips. and parting beads but in the present casethese are eliminated. There are secured to the inner side of each sideof frame I two plates 4 and 5 which have laterally offset L-shapedangular portions or flanges 6 and I respectively which extend throughoutthe length of the plate and, likewise, throughout the length of theinner side surface of the frame member I, and cooperateto form a channel8 which can be filled with felt 9 or any other suitable insulatingmaterial adapted to fit snugly against the adjacent portion of thesurface of member I. As the portions 6 and I interfit slidably, they canbe adjusted toward or from each other to reduce or increase the size ofthe channel or parting stop along 1 Claim.v (01. 2044) which the innerfaces of the respective sashes S and S slide, and to correspondinglyadapt the invention to the sashes with which it is to be used.

Those edge portions of the plates 4 and 5 remote from. the offsetportions 6 and I are bent to form substantially cylindrical tubes II)which are formed with longitudinal slits II. Slits II are defined byreason of the fact that in rolling the tubes, the edges themselves ofthe respective edge portions are brought to positions closely spacedfrom the respective plates.

In the structure illustrated in Figure 1 each of the sashes s and Smounted in the window frame has a plate I2 secured to each side thereofand provided with a laterally offset portion I3 at one end adapted toslidably engage the adjacent wall of the channel 8, said adjacent wallbeing defined by part of the L-shaped angular portions 6 or I. Theopposite edge portion, of. each plate I2 extends through the slit II andmerges into a resilient tube I3, the edge of which edge portion isbrought against the plate I2 to define a longitudinal slit I4 wherebythe tube I 3 is free to contract or expand in order to maintain it intight frictional contact with the tube IEI in which it is located.

Plates I2 can be attached to the sashes in any suitable manner so as tomove therewith and, in order to prevent leakage of air between theseplates and the sashes, suitable packing material I5, such as felt or thelike, can be located in longitudinal channels I6 provided in the sidesof the sashes.

At the bottom of the frame I there can be provided an insulating meansin the form .of a plate I! secured against the bottom of the sash S andprovided with an upwardly extended portion 18 in the form of an invertedchannel adapted to wedge between the sash S and the sill 3. Thisinverted channel I8 can be filled with felt I9 or other suitableinsulating material for snug contact with the bottom of the frame. Alsosuitable packing material 20, such as felt, can be seated in a channel2I in the bottom of the sash S so as to prevent leakage of air betweenthe sash and the plate II.

Obviously by providing a structure such as described the parts can beadjusted readily to sashes after which the plates can be nailed orotherwise attached to the window frame and the sashes respectively. Withthe tubular portions 13' seated within and frictionally engaging thetubular portions I 0, the sashes will be properly guided when slidupwardly and downwardly but the frictional contact between these tubularportions will be such as to support the sashes in any position to whichthey might be moved.

Instead of providing the inner or sliding tubular members l3 with plateswhich extend back and engage the walls of the channel 8, the structuremay be modified as shown in Figure 3, wherein the tubular guides 22which are carried by plates 23 similar to the plates 4 and 5, areengaged by slidable split tubular members 24 which are carried by plates25 attached to the exposed faces of the sashes S and S as shown insteadof being extended between the sashes and the sides of the frame.

It will be noted, by reference either to Fig. 1 or to Fig. 3, that theconstruction illustrated provides a sash mounting in which it is notnecessary to rout or rabbet either the sashes or the side jambs of thewindow frame, the sides of the sashes and the faces of the jambs beingleft fiat. This reduces the cost of assembly of the wooden frames andsashes. In this connection, the mounting illustrated and describedcooperates with the fiat sash and frame formation in such a way as tomount the sashes for vertical sliding movement without the necessity ofsash cords or the like, and the several plates not only fulfill thispurpose, but also fulfill the purpose of Weatherstripping, and theadditional purpose of forming a parting strip and window stops, therebyto eliminate these items of trim which must ordinarily be used on adouble hung window.

What is claimed is:

The combination, with a window frame having opposite, flat-surfaced sidejambs and with spaced sashes having fiat side surfaces and mounted forvertical sliding movement between the jambs, of a pair of verticallydisposed plates secured in side-by-side relation to each side jamb, saidplates having flat center portions secured flat against the associatedjamb; L-shaped flanges integrally formed upon the inner edges of theplates and outstanding from the frame, the flange of one plate beingslidably interfitted with the flange of the other plate to fill thespace between the sashes and provide a parting strip of adjusted widthalong which the inner faces of the sashes slide; longitudinally slitguide tubes integral with the outer edges of the plates and outstandingfrom the frame, said tubes contacting the outer faces of the sashes toconstitute window stops and cooperating with said flanges to providespaces in which the sashes are mounted for sliding movement; plateshaving flat center portions secured to the fiat sides of the sashes andfrictionally engaging and slidable upon the center portions of thefirst-named plates; a longitudinally slit tubular slide integral withthe outer edge of each of the last-named plates and frictionallyengaging and slidable within the guide tubes; and an angularly offsetportion integral with the inner edge of each of the last-named platesand frictionally and slidably engaged by the L-shaped flanges of thefirst-named plates, the last-named plates being in contact for theirfull Widths with the respective first-named plates.

LOUIS ZEMAN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 631,529 McSherry Aug. 22, 18991,110,841 Venske Sept. 15, 1914 2,165,943 Schuler July 11, 19392,173,649 Firner Sept. 19, 1939 ,388 Wolff et al Dec. 16, 1941 2,315,200Guillaume Mar. 30, 1943

